. >> the body that was found in arvada has been positively identified as jessica ridgeway, the missing girl from westminster. the family has been notified. we can't begin to comprehend the grief that they're going through. >> reporter: jessica's body was discovered in the park wednesday about 7 miles from her home. police say they're now focusing on finding a suspect. >> we recognize that there is a predator at large in our community. i want the community to know that we are doing everything within our power to apprehend that individual. >> reporter: jessica began the short walk from her home to school last friday, but she nerve arrived. only her backpack -- never arrived. only her backpack was found two days later. investigators are asking residents to be alert for people they know who might have suddenly changed their appearance. >> we want you to look for changes in habits, patterns, peculiar absences of those around you and report it. >> reporter: authorities say so far they searched more than 500 homes, over 1,000 vehicles and responded to about 1,500 tips in this case. >> our pri